What is the mathematical operation being represented?

Mathematical Operation

The image displays a mathematical expression involving numbers and colons, which typically represent a ratio or division. Specifically, it shows '5 : 3' and '7 8' arranged in a way that could imply a comparison or a system of equations. Without further context or explicit operators between '7' and '8', their relationship is ambiguous. However, the format strongly suggests a mathematical problem related to ratios or proportions.